Should we Talk About the Khilafah in Syria?

There are people of knowledge that provide hundreds of ajeeb and gharib "proofs" to support the rights of homosexuals to marry and saying that taking part in democracy is WAJIB", yet they cant accept the definite indisputable qati evidence of the consensus of the sahaba to say unity behind one ruler is an obligation.They say calling for Islam is naive but supporting democracy is HIKMAH.Let's take a look!Source: https://www.youtube.com/watch?v=4ebE7m1YYRs