If Hitler only killed Roma people, do you think the US would have cared? Would anyone have fought to save the Roma, or would everyone have?

The US wasn't fighting to save the Jews, they were fighting because Germany declared war on them.

Rumours that the Germans were mass killing people in concentration camps weren't initially believed, until they found them.

Not so good from a distance

Tourists to Paris would be safe now

In that time frame the USA set their face away from Hitler and his evil doings, Hitler offered them the jews but the USA refused and he disposed of them in horrible ways.

Up until the pearl harbor incident the USA would have never turned its head.

Lol wut does this have to do with food

The US didn't enter WWII until late 1941 - early 1942 after the Japanese, as a member of the Axis, stupidly attacked Pearl Harbor under the Chinese agent Hirohito.

Hitler should have taken a page from Stalin and stuck to killing German citizens. If you kill your own citizens the world is generally ok with that. Or Pol Pot in Cambodia. Kill your own and the world looks away. 

Adolf Hitler messed up by saying his struggle was sacrificed to racism and genocide ...period !!!

To sacrifice the greatest military machine and man power .....deserves eternal condemnation !!!!

The fighting was more to stop Germany from invading other countries than to stop genocide.

Hitler slaughtered more Jews than the entire Roma population.