I'm a landlady and currently in the process of sorting through prospective tenants. The first thing I do is look through person up on Facebook and the state court website.
I had a very personable email from a nice sounding gal. Unfortunately, she had a felony from 2009 listed on the court site. Her Facebook public posts are littered with obnoxious political posts, in her case bashing Trump and trumpeting abortion rights, and other liberal causes.
I wrote her back asking for an explanation regarding the felony, and also advising her to make her public Facebook more neutral, that it might offend more conservative landlords and prospective employers as well.
She didn't bother to reply and I rechecked the Facebook to see if she changed anything. No she didn't. She also had a post on there about her growing desperation to find a new place.
It's a landlord's market right now, I have many fine applicants for this nice house, and a below market rent. I'm proud to say my last 2 tenants have moved because of being able to buy their own houses.
So, yes, you have a right to shrill commentary on Facebook. But, be aware that A) Your slacktivism is most likely useless and B) your opinionated posts might hurt you. So, stick to cute pet videos.