When in doubt, go to the source of the teachings. You will find excellent articles supporting the Roman Catholic teachings about the extra grace given to Mary (Immaculate Conception) and similar topics here:
Don't listen to Protestant expositions about...
Since our universe exists, and there is no evidence of any gods in it, gonna say yes,
Jehovahs Witnesses upon baptism devote their lives to the doing of God's will. 1Tim2:4 says:... ' whose will(Gods) is that all sorts of people should be saved and come to an accurate knowledge of truth"
Seriously, is this the Dawn Of The Third Grade Dropouts?
When a religion becomes particularly dogmatic, and then becomes the dominant religion of the land, the leaders of said religion oppress any opposing viewpoints, even ones with factual basis. That is a proven fact, which Christians would like to hide.