Yes, fatalism is anti-social.
Yes, fatalism contradicts the exercise of influence.
No, fatalists are equal members of society.
No, fatalists deserve the right to influence others.
Believing in fate does not necessarily mean that the believer claims prescience.
The morality of abortion is not a religious belief, any more than the morality of slavery, apartheid, rape, larceny, murder or arson is a religious belief. These are norms of the natural law of mankind and can be legislated even in a completely religionless society.
Are you coming to bed?
I can't. This is important.
Someone is WRONG on the internet! -XKCD
Also, we need to legalize recreational drugs and prostitution.
Lets look at groups that believe in fate.
1. Christians (the whole Jesus is coming back thing) (I fall into this group)
4. A bunch of other religions (not all mind you)
5. People who believe that the world is getting better over time (I fall into this group) by means of innovation in greater individual wealth
6. People who think society is about to fall apart due to some problem from meteorites to a world economic collapse for one reason or another
7. Futurists such as those who believe in a singularity
It doesn't leave much of the population out really.