As a queer in several senses of the word, Instagram is not a place to find a supportive queer community. Instagram is the most one-way of all social networks — i.e. it's almost all plebs following celebrities.
Indeed. I find there's a lot of inclusive and positive communities on the Fediverse with Mastodon as twitter alternative and Pixelfed as instagram alternative (and increasing integration between the two).
I think though that this 1:many culture e.g. the mainstreaming and appropriating of queer culture has had a positive affect of allowing kids to have way more freedom of expression to be themselves. Like looking back growing up only 15 years ago in a liberal area the progress is insane. Gay marriage was illegal & Obama was against it! that's crazy to think about.
Time has flown by (not fast enough especially for gender) and my point is I don't think we can ignore the role of social media & traditional media in those positive changes. Which is a 1:many broadcast like you mention.
It's an interesting balance though I think OP makes a good point in looking both the bad and the good.
That is not how I experience it. Obviously, it is 100% about who you follow, and two people can have two entirely different experiences depending on those choices.