No. The multiple is much higher than six. The graph does not compare equal size MSM and MSW populations. It compares the number of syphilis cases in the entire national MSW population with the number of syphilis cases in the entire, but very much smaller, national MSM population.
Similarly, HIV/AIDS graphs are not understood. Homosexual men are actually 20 times more likely to be infected than the average person.
OMG! I didn’t realize that. Basically, if you’re homosexual, you have a(n?) STD. And, now, STD’s are becoming antibiotic-resistant. Oh, well, G-d told them what not to do.