If they have a big one, both straight and gay guys, like to show it off. They would walk around naked constantly, if given the chance. Sungas may be what Brazilians call that, but it's a squarecut. I like the square cut. People judge peoples' bodies very severely here, even when their bods are imperfect. The other kids left him bawling his eyes out. No homo?
Same reason basketball players wear shorts down to their knees now and not the short shorts they wore for decades.
Why do you think the speedo isn''t more popular in this country? You people are weird. Except for professional wrestlers, the kind of guys who wear speedos are perceived as very uncool by the large majority of American men.
I go for nylon suits with at least a 4" side panel.