Google, Facebook, and Amazon (due to the connection with Washington Post) are vilified, and multiple posts reach the top each week outlining alternatives - Duckduckgo is a major one, firefox/brave are suggested browsers, and in general people on that sub talk about completely disconnecting from facebook, or minimizing use to messenger only.
I can see a pretty sizeable opportunity for platforms to come out that are truly tolerant of all speech/perspectives. I'm not criticizing, nor expressing favor towards, any of the services I've mentioned, but it seems like someone could make a solid earning in a lifestyle company aimed at servicing individuals who want privacy and uninhibited freedom of speech.
For reference, T_D is in the top 125 of subreddits by subscriber base and activity. If you exclude default subreddits, they're probably in the top 50 subs. Considering they probably have even more penetration through the amount of lurkers (like me), I wouldn't be surprised if they drove a sizeable chunk of users away from Big-Tech.
Edit (for personal reasons): I'm not on T_D because I support Trump. I go there to get a perspective of people who I don't completely understand, in order to better understand their needs/fears. Also, their memes are dank.