Aside from agreeing with most here that they shouldn't have seats by right I don't see that Jesus having existed or not makes any difference. They now (forget the past, the reformed churches are quite good at eventually moving with the times) represent a view on how people ought to get on with one another that millions of people subscribe to (though the selfish b*st*rds may not actually do it).

Maybe Jesus didn't exist and that moral outlook has evolved from what 1st century philosophers and political thinkers convinced others was a good idea (getting rid of all tht messy sacrificing of things may have gone down well). What if Marx and Engels had presented their ideas 2,000 years ago leaving no written records but a strong and popular folk memory of socialism. It wouldn't matter now whether they had existed or not**. Would you bar socialists from having seats because the originators may not have existed ? Millions of people subscribe to their view on how people ought to get on together (though the selfish b*st*rds may not actually do it).

**Why invent them you may say. Yes indeed. Why invent Jesus ?