Why do people follow and believe in right wing ideology?

I am the exact opposite.
I do not believe in an afterlife and believe in abortion if it is second term or less and do not believe in capital punishment since I feel that actual life is sacred since that is all that you have. I feel that mild sentences that involve drug users such as marijuana and other light drugs deserve lesser sentences and that heavy drug offenders deserve the highests penalty of the law. We should really punish the pushers and not the users of the explicit drugs as the users are the real slaves.