darth_ender said:

But is it wrong to teach others my beliefs?

Not if they want to be taught.

Is it wrong to share why I believe it is wrong?

Not if someone wants to hear why.

Is it wrong to encourage them not to engage is immoral practices?

Depends on what the immoral practice is. Your definition of immoral is not everyone's definition of immoral.

Is it wrong to abhor sin, while showing an increase in love towards the sinner?

It's better to not abhor something that does no harm and is only considered sin because people in power decided it's a sin.