The only reason a guy would refuse a DNA test is because he fears it would prove him the father, and he’d owe child support.
According to YOU, he could claim that I slept with 10 other man, and he therefore is probably not the father, and thus gets to escape responsibility. Where’s the proof of the others?
You really hate women. You want to believe the man’s lie - without any proof - that she slept with other men, but you don’t want to believe the woman that she slept with only him.
And what if she slept with TWO? Each gets to say “maybe the other guy is the father” - and thus, neither has to take a DNA test, and both get off Scott-free?