If corporations are people then they absolutely should have the right to exercise whatever free speech they want to.
Nobody is preventing those deplorables to say whatever the hell they want, but also nobody is obliged to provide services and platform to those people to spread those toxic messages.
According to /r/conservative the entire tech industry is ran by leftists, and leftists are stupid, unemployed losers who live in their moms' basements. So it should be easy for them to recreate their entire own tech infrastructure to host whatever nuclear waste dumpster fire app they want, after all it should be very easy for "smart, hardworking real Americans" like them. Hey, capitalism is all about competitions right? Last time I checked there may even be some money involved in the tech industry so I'm actually a little puzzled why they haven't done so already.
If you think I sound like a smug douchebag in this comment that's because it's exactly how I feel from reading these news these past few days.