G4 Endless mode is a little too... much?

The difficulty spike between G4 story mode and G4 Endless is like astronomical, and its mostly in the early game bosses. Certain builds just do not survive at all, and some classes are just so much easier than others. I'm all about difficulty, but facing against two bosses while I don't even have enough resources to have a semblance of a build is just unfair. And the bosses are just insane, you have to dodge wide af AOE bombs everywhere while dodging 2 rotating lasers that have the same width and theres homing shit and bunch of other lasers while managing your resources and its just too damn much, that at most times it just feels like a toss-up of whether I'll have enough luck to survive the next 30 seconds. It doesn't feel like much of an endless mode if 80% of my runs end on a clusterfuck first boss, the difficulty spike is just unfair.