It’s harder for atheist to be lovey dovey than Christians

No doubt atheist can be kind & loving.
No doubt Christians can as well.
Because only Christians believe there is god watching, or sometype of eternal rewards, it’s self evident they’re more incentive to be kind & loving.

Just because its self evident more people would be more incentivized to act kindly because the potential of a god or eternal life does not mean there is a god or eternal life. I think you could acknowledge the obvious incentive difference without being moved one inch closer to granting this has any bearing on existence of a god or an afterlife.