I guess there’s a difference between generalizations and stereotypes.
For things that people ostensibly choose, such as religion and politics, even allowing for differences of opinion within those groups, there have to be some things true of a statistically significant majority of people within those groups such that stating them as defining characteristics of members of that group is not stereotyping; those people that are members of the group that don’t share those beliefs are statistical outliers - exceptions to the rule.
I’m not going to hazard any examples, though.
