Startups define different classes of stock. The class A shareholders are the founders and investors. Everyone else gets class B shares. The A class shares don't get diluted, and they are inherently worth more anyway.
Pref shares do get diluted, they are however senior to common stock so they get money FIRST if there’s not enough to go around. There is some cap on this and sometimes it’s pretty high. Huge pref overhangs are, indeed, a problem.
Pref shares with a 1x preference are still worth like 10x common stock in early stage companies and it’s common for employed to get fucked by this.
Founders don’t get preferred shares (I think it’s really, really rare). There is founder pref stock, which is somewhat different. It’s common for founders to cash out some shares along the way, though.
This is not standard. Normally founders and employees get common stock and investors get preferred stock. Founders may get more stock issued in a round, and VCs/founders can pretty much rework the cap table to their liking if they really want to. The difference in return between founders and employees is down to percentages. Founders get 25-75% where employees get 0.01-1%, maybe a bit more if they're lucky.
So fundamentally, "everyone else" is scammed. Unless the class A scammers get so, so rich that everyone else gets rich as well. In which case it's still a scam, but the "everyone else" are happy anyway.
Anti-dilution shares were extremely uncommon.
Founders get common stock - class A voting.
VCs get preferential shares, not common. Preferential shares have economic rights to protect the investors, but more importantly they usually have extra control rights like veto abilities, board seats, IPO control, or ability to sack the founder (which may even cut out the founder's voting rights by sunsetting their class A common into class B common shares).
Employees get a third tier of stock (e.g. options that convert to non-voting class B common shares).
After IPO the preferential sheets becomes common shares. The dual A class may be removed or have sunset clauses because large public investors prefer one plain common share class.
Not a VC - so take above as written by a student. Founders in zero sense have the same voting control as VCs.
Edit: VCs play the same game over and over again, against different innocent founders. VCs know how to stack everything in their favour - especially using social cues and "norms" that benefit them. My favourite article on this is: https://siliconhillslawyer.com/2019/02/18/relationships-and-...