Third skill issue, third poor planning, third being completely right. Unless you wear specific clothings and have specific weapons (IE the new space wands), the class as a whole is entirely weak compared to the other classes that can just spam basic attacks in 99 out of 100 scenarios. The entire point of the class was to give Willpower a purpose other than being a dump stat you only filled up to a specific number to pass a few events that have a willpower check, but in implementation it just sorta made your character more "averaged out" because all those other stats are still just as important.
Being honest, you chose your skills poorly. Vitality Siphon giving you HP steal sounds good on paper, but when you consider there being weapons you can get that does that (2 guns sold by Kattom with the same percentage of HP steal, plus a new gun planned with much better HP steal) on top of the other skill you could have chosen being an almost full energy resupply for the class that focuses the most on using energy... you started screwing yourself there. Acid Cloud similarly was a poor pick compared to Entropy Whip, relying on DoT effects is sorta poor when you compare it to something that does similar damage outright and then has a stat reduction effect that goes with it, especially considering the upside of the Acid being that it crits immobilized targets but there really aren't any really good immobilization skills available to the class (there are a couple that's I'd say are decent, but they're mostly for comboing with other specific skills) which means you'll be reliant on weapons and consumables to get Acid Cloud to do much. In comparison, EW hits multiple opponents doing really good damage to all and put a quite hefty stat penalty on them making them extremely weak to crush damage, which several of your skills by that point already do so you aren't reliant on having a crushing weapon to make full use of the skill.
You can quite happily impregnate Sam, Stella, and Ula. Sure I'd love more content for the various pups (especially the Corona sisters), but Anno is already your puppy play addict crewmate and you can play with Erra on pretty much every planet. It's not the game's fault it doesn't cater to your loli haram impregnation rape fantasy, you just sound like a very unpleasant person in general.
You don't have to do that to get her pregnant, that's only for you getting pregnant with her kids. Plus with the Belle experiment route for breeding Seac, you only eat cock by going back after you breed her (incomplete at the moment but getting Seac pregnant is planned for a an update Soon-tm).