It's worth keeping in mind how extremely unfriendly to tech the last admin was. At this point, it's basically proven in court that emails of the form "please deboost person x or else" were send, and there's probably plenty more we don't know about.
Combine that with the troubles in Europe which Biden's administration was extremely unwilling to help with, the obstacles thrown in the way of major energy buildouts, which are needed for AI... one would have to be stupid to be a tech CEO and not simp for Trump.
Tech has been extremely Democratic for many years. The Democrats have utterly alienated tech, and now they reap the consequences.
Well, on the other side it can be said that Big Tech wasn't really on the side of democracy (note: democracy, not the Democrat Party) itself, and it hasn't been for years - at the very least ever since Cambridge Analytica was discovered. The "big tech" sector has only looked at profit margins, clicks, eyeballs and other KPIs while completely neglecting its own responsibility towards its host, and it got treated as the danger it posed by the Biden administration and Europe alike.
As for the cryptocoin world that has also been campaigning for the 45th: they are an even worse cancer on the world. Nothing but a gigantic waste of resources (remember the prices of GPUs, HDDs and RAM going through the roof, coal power plants being reactivated?), rug pulls and other scams.
The current shift towards the far-right is just the final masks falling off. Tech has rather (openly) supported the 45th than to learn from the chaos it has brought upon the world and make at least a paper effort to be held accountable.