Whatever BigTech means to you... Please be as specific as possible; I'd love to have a list of specific reasons rather than a debate about policies, politics etc.
The unchecked expansion of tech firms during the Obama years created the hypercentralised industry we call Big Tech. If a Stalin or a Hitler showed up today and seized all of this power, the civilian population would be powereless to defend themselves. No foreign power would be able to disrupt the holocaust this time. The mid 20th century doctrine of the balance of power aimed at preventing this by dispersing power, and ensuring that the big players are roughly balanced. But just like the MAD nuclear strategy, this had been abandoned, and the future is now a very uncertain place.
I see social media companies called "tech" in the media, but I don't care for that. I see phones comprising the entirety of "tech" and "high tech" coverage in some outlets, but that's not interesting at all.
My hope has been that different perspectives on that term also manifest when specifying concerns.