While big Tech tends to be staffed with a lot of progs, its upper management cares only for money and power for the sake of money and power. The politics is... secondary.
Big Tech is the Inner Party, progs are the Outer Party. We're the proles. Remember your
1984: big tech only cares about power, and the pursuit and gaining of power. They're not there to protect the revolution, the revolution is there to protect them (from criticism). That they get a little push back from time to time (complaints about housing in the Bay Area, AOC's "keep Amazon out of Manhattan" stunt) is just the cost of doing business.
Here's a thing about "big tech".
All of those guys came up in the 1980s. Bezos, Gates, etc., they were all computer punks at one point and having been there and done that, to a one, those guys are libertarians. Now, hold on a second, before you start in on me about that label...they're "fuck you, got mine" types of libertarians. They wanted all the bbs circle numbers, all the warez without re-sharing, if xyz BBS sysop locked them out they would lean on guys until they popped and got back in, and then proceed to ruin the guy's life (fucking with their phones via blueboxes, etc.) - it just carried over to this point here, now. Now it's ruin a guy's life by swinging a hundred million bucks at his startup. Now its controlling things by controlling a narrative on social media. It's that punk bitch hacker mentality but writ large. They all sat by the glow of their Apple II green phosphor monitors and C64s hooked up to crappy 13" color TVs and said "man if I ran it all..." well, now they do. They created the environment that the lefty troon culture sprang up in and created perma-online agender lumps who screech on twitter and reddit posts that "your freedumb of speach has consequences!", then they harvested that crop and put them in cubicles. To keep them satiated, they pay lip service to BLM, TLM, and any other thing the commissariat requires to keep functioning and #resisting #trump.
But the reality is, if Gen Y and Z were hard right conservative, that's the line you'd see Big Tech toeing, too. Because it would keep them in power and money.