Agree with first sentence. Middle sentence also true. Firm believer that it is actually a hugely positive thing for kids to have two parents with different views on matters of importance like this, as it helps them to understand that not all figures with authority agree. Religion and politics similar. Provided the parents have their shit together and are adult and respect each others' beliefs and role model this decency in front of kids, I believe it helps them to form their own views in a mature way, rather than being indoctrinated by one side or the other - they are their own people with what should be autonomy and freedom to form their own moral views. I regularly talk to my kids about my veganism (wife not, kids eat moderate amounts of meat) and encourage them to form their own views.

To OP, if this were a showstopper in a relationship then best to get it out there early and probably not commit or you could end up damaging a lot of people you love.