yeah, there's always an excuse why he just can't pursue his ideals right now, huh?
you fail to get right. it's true that he has a personal distaste for a lot things the families are doing, they are uncivilized tribal to him.
still, you vastly overestimate his moral idealism
Not really, it's basically if he does the NCR will kill him. Once the fight in the Mojave is over he's free to continue...it's not an unfounded excuse, it's a pretty fair one considering one of the first things the NCR has you do is murder him...
i suppose, with that you'd also like to explain why he sends you on a slaughtering mission into the bos bunker? :hubbahubba:
Done that, lots of times. Before you go "haha failed by your own argument!!!" I came to it impartial, in fact I was opting for independent. I came to everyone neutral. The BoS are [censored]s.
Quick summary of the last few pages on BoS: they're not the guys from FO3, they're narcissistic murderers and thieves who will do anything to possess technology, especially if it can be used as a weapon. The Lucky 38 is basically one big weapon. Between the securitrons and it's own defenses it's like a giant [censored] for the BoS. They must go and touch it. When this occurs, they kill people, house won't take it lying down (well...ok) and nor will the Kings. Most of the Strip would be destroyed, the securitrons would be wiped out or captured by the BoS and used as their weapons. The casinos would be stripped down to ensure no tech was hidden, the FotA would be well investigated (they have tech, after all) and New Vegas would essentially be destroyed.
But of course, pre emptive strikes are evil in every single case. Ever.
No, they're not. Pre emptive strikes are an ingrained part of warfare, if, in a contested area, you have an enemy who has been weakened by a third party it is a logical and militarily sound move to attack them while they are weakened, kicking them while they are down if you want. Especially if said enemy is power armour clad (look at the Enclave siding with Legion ending, if Caesar is killed and Lanius takes control he sends the Legion to kill the remnants, who basically [censored] them up big time without taking any losses (I think it's scores of Legionnaires killed with no loss, basically the same as if Lanius takes on the Boomers, but he never wins. They're more powerful than artillery guns. No joke.)
The BoS are incredibly dangerous, they're tribals with delusions of superiority, they will take any technology which can be used as a weapon to stop other people using it...
than...
they use it...
Yeah, that's the short one.
i brought that up to make clear, that he is not reluctant about any 'necessary' measure to achieve his targets
No, he isn't, making him one of the few who gets anything done, in itself not necessarily a good thing. However if the goals are good then there's minor issue (the only major problem comes from the possibility of overlooking important details, single mindedness. House exhibits some signs, difficult to dissuade from goals but only minor signs).
first and for all, he wants to save himself.
srsly, actually start measuring people by their deeds, not by their words, you cuddly, easy to manipulate thing

No he doesn't. If he wanted to save himself he'd have [censored] off at the start rather than setting up in the middle of a crazy busy area. He had the money and power to make a fortress, instead he deigned to try and save the entirety of the Vegas area, something he almost pulled off, he still stopped it from being utterly destroyed.
I measured them all by their deeds, that was the focal point of one of my posts a few pages back, summed up with House is the only one with credentials beyond land grabbing and mass murder. Of all the options, his is the only faction to side with that has a CV and any real prospect.