I would like to see where you are talking about "forced" it seems like you are using the term forced to mean very highly persuaded, which is NOT forced. Forced means, you either do it or you die, DIE as in shot immediately. Not a single person in the SS was ever FORCED to be in there. The fact is they wanted to be a part of it due to the prestige, money, and to keep climbing the ranks.
Now, once they joined, they realize what was going on, and it didn't take much. Because the pograms that were going on since 1934 were EXTREMELY transparent. They killed jews in broad daylight at times if anyone of them tried to fight back. This was especially true once they "invaded" (without ever firing a shot) into Czech, Austrian, and other nearby countries being taken over before WWII. So yes, they may has well have been advertising, "We are killing Jews".
The fact is they knew exactly what they were doing. If you join an organization and you kill people on a regular basis, you are very aware of what is going on and have a moral duty to humanity before your nation.
They weren't trying to survive. Life for most Germans in 1935 wasn't a fringe, life or death situation, it was a "hey we're making lots of money buy stealing from Jews and forcing them into ghettos, lets employ more aryan germans."