I think it was Alan Dean Foster who said (paraphrased) that time travel is impossible not because time travel is impossible but because there’s a certain point where all of the time traveling that can be done will have been done.
The only downside is that you never know if you’re on the final loop or not, so everything you do may be the most important thing you will ever do, or it may not matter at all.
No.
Everyone has their own opinion about it but I don’t think that there is any eternal consequence to it.
It’s just a really shitty thing that people have to go through sometimes, either shitty that they prevent the child from being born and then have to live with their own guilt about it, or shitty that they let the child be born regardless of their feelings and then have to deal with the consequences.
It’s a bad roll of the die anyway you look at it