I can't defend the up close butt and cleavage shots, (regardless of how nice it is to me) I can imagine that making a lot of people uncomfortable. If that's the argument and you stop there, fine.
But regarding the "impracticality" of outfits, I just still think people are unfairly singling out the females over males. Thane, Jacob, and Zaeed (the former two more than anything) all have outfits that stretch believably in the context of the game.
You can see Jacob's pecs and abs through his suit, and it shapes up his ass pretty nicely. It's about as tight and unarmored as Miranda's outfit, yet doesn't get much flack.
And lol Thane, wearing nothing but a trenchcoat and a skintight onepiece that exposes his chest and neck area.
Like I said if you have a problem with the "sexualization" of the female outfits, just go ahead and say so, w/o hiding behind the "impracticality" and "breaking immersion" arguments, because the outfits the men wear are just as ridiculous as the women's in the context and setting of the game (which don't really matter IMO, since it's all fantasy and escapism to me)
I don't view Miranda, Samara, or Jack any differently because of the way they dress. They're still the same characters, (with their strength and flaws) regardless of how they dress. It's the same with the males.
I like the female outfits because they're aesthetically pleasing to me, and I think they have a right to be in the game, if the males look they way they look. Arguing about things like sexualization and taste is subjective (which means opinions should not be stated as fact)