Some radical feminist believe that mothers are privileged. While I do believe motherhood is expected of women and there is a bit of status in it, I don't see how they are privileged (especially in the USA without a lot of the government protections or programs).
There doesn't seem to be any systemic privilege's given to mothers over childfree women. People looking down on childfree women is not systemic discrimination or oppression.
And my focus is on western countries specifically the USA.