Having to repeat myself over and over is getting tiring now.
You don't have to keep repeating yourself. You just have to keep altering your position.
It's doesn't, what I'm saying can apply to anything that she doesn't feel comfortable doing.
Even if that is what you're saying (I'm not sure it is anymore), I'm not buying the general argument that the measure of an actresses level of committment is her willingness to do something she doesn't want to.
Jessica Alba could do everything in the world she doesn't want to and she still wouldn't be taken seriously as actress. As Jel pointed out, If I was a director who had a good script, I wouldn't want Jessica ruining my movie:
Jessica Alba is not going to be offered roles that ask her to challenge herself. She's not talented enough.
I'm assuming a more committed actress means she'd be taken more seriously, they seem to go hand in hand. And if I'm wrong in that assumption, if "being more committed" won't make any difference (she'll be just as poor an actress as ever), why should she bother? Why the need?
The only "committment" she needs to show is to improve her acting skills (and simply doing something she doesn't want to won't accomplish this), and then she'll get more demanding and serious roles.