Scientific theory doesn’t tell you to love your neighbor

It doesn’t and religion shouldn’t need to, in fact if the only thing making you a general good person is a religion, then you’re not a good person. Morals and personal strength can and should be derived from other sources.

We don’t need any more hate in the world.

Religion is directly responsible for the bulk of the hate, in case you haven’t looked at the world around you. How many wars were started in the name of a religion? Whole groups of people are being discriminated against because of religion right now. There’s a war right now because of religion. X religion people hate Y religion people just because they believe in a slightly different flying spaghetti monster. Countless lives throughout history have been lost in the name of x or y religion.

A world without religion would still have hate, crime and greed because humans are humans, but it would be so much better than currently.