No, not all tech companies do illegal things. It's a false equivalence.
* Chinese manufacturers aren't really "Silicon Valley tech companies" and workers there committing suicide has more to do with Chinese culture and poor work practices than technology.
* Keeping money in Ireland is not a crime. The government set up really dumb tax laws, and companies responded rationally to them.
* Patents suck, but again, it's a government issue. The government sets up patent laws, and you have to abide by them. Some companies are more abusive about this than others, but they all have to follow the law.
* Uber making false calls was unethical, and possibly a crime. Uber does suck as a company but not all tech companies are Uber.
* Google didn't approach Facebook to fix wages. Steve Jobs did that. It was illegal and the government fined everyone involved quite a bit of money (although probably not as much as they should have).
* "Google" doesn't sit on Apple's board. Some people from Google used to sit on Apple's board. If there is a conflict of interest they are supposed to resign, and that's exactly what happened when Google started competing with Apple's iPhone.
* Google doesn't bully suppliers, Apple does that (sometimes). Google doesn't manufacture Android phones, they get other companies to do that for them. Yes, even that Nexus phones.
* Microsoft was convicted by the Department of Justice of anticompetitive practices. If I remember correctly there were felony charges. If you don't understand how seriously unethical they were in the 80s and 90s, you haven't been paying attention at all.