Why would my thread be marked politics?

You realise anyone at all can label it Politics?
And some people have trigger fingers and get all bent out of shape as soon as a single word in there is in any way political & they have nothing better to do.
Just unlabel it if you want to.
I unlabelled one of my threads 5 times the other day, firstly because it wasn't a "political discussion" thread, and secondly to piss off the person who kept labelling it.

Yep - if you look at the top post of any thread (on the webpage - not sure if it is the same in the app because I don't use it) in the top right corner it says "actions" when you select the drop down menu, one of the options is "labels" and from there it will either say "add politics" or "remove politics" and anyone can do it on any thread.

My post about Pelotons in the White House was marked political. I was surprised someone considered that political. I didn’t know machines could be political. Lol!

How I picture the now-quiet Trumpsters on this board, furiously clicking Politics:

My MLK Day of Sevice thread was marked political too. I usually post from my phone and can't see the tags, but I happened to jump on a computer and see it. I didn't know how it was applied/removed either. Good to know!

Speaking only for myself, I will mark a thread political if it is political and ugly. Bashing, name calling, etc. If there was a label just for ugliness, I would use that one instead. There's a difference between saying "I think George Washington looked sexy in his wig" and saying "that stupid piece of shit Ben Franklin could learn a lot about wig wearing from George Washington."
I think a lot of peas have a big blind spot when it comes to their statements being political. They want to equate the political tag with being thin skinned, being a Republican, etc rather than accepting that they are in fact stating a political opinion.
I do avoid threads marked political, because to me that tag is a symbol of ugliness. Sometimes a thread is started about a topic I would be interested in discussing and turns into bashing and ugliness. A couple months ago there was a thread about impotence being a side effect of covid. Instead of being a discussion of the linked article, it immediately turned to another thread of peas cackling about limp dicked republicans. That made it a political thread for me.
I didn't read the Yellen thread so I don't know what was being said there. I did start reading what I think was the peloton thread mentioned but stopped when I got to the grammar police correcting the spelling of peloton.
Speaking of grammar police, that is another weapon deployed in the political fighting here. If a pea is expressing the majority opinion, how often do the grammar police visit? I remember on the giant bullying thread a pea grammar policed me and thought she was being cute and funny. No, you were being an ass.

Well that doesn't make it a political thread for others.
That's not the intent of the tag to be used for what YOU consider "ugly" you're complaining about the grammar police, but at the same time you are being the self appointed board police and what you consider acceptable discussion police.
That's not how it works, and yes, having a trigger finger and labelling everything politics because you don't like the topic, does make you thin skinned.

I think a lot of us need to start unlabelling those threads as quickly as you seem to be labelling them. Threads you don't like the 'tone' or content of doesn't make them politics.

I never knew this!   And btw, I labeled this political.  Feel free to unlabel.

I think it is the job of the OP to decide if a thread they initiate should be marked Political. I think it's really passive-aggressive to give other people's threads the Political label. I think if you think a thread goes off the rails, then it's your job to redirect it back to what you want to discuss. It's all about the big girl panties here, as I'm sure you know. 

Can I ask you a question? Why do you participate here? Almost every post I read of yours is telling the rest of us how ugly we how, how all we do is bash and name call. What enjoyment do you get here? And I'm not being snarky and saying you shouldn't post, I just don't understand why you want to be part of something you obviously abhor.

Someone really does like that button...AmeliaBloomer's post about White House china has been labelled political, despite her specific request that it not be and despite the fact that's NOT about politics, nor is it 'ugly'   Yes, I removed it.

I'm going to pay more attention and start removing the labels unless it's a definite 'heavy' political discussion thread,

Exactly!

Just another reason why we need an international membership here that spans time zones: Untagging Duty. 

Well done, comrade cousin.