Never allow the sisters here or anywhere else tell you what a "Real Man" is.
I've noticed some sisters here and in general often like to shame Men who have strict boundaries, standards or have opinion they disagree with, by questioning their masculinity.
"A real Man wouldn't do X"
"A real Man wouldn't say X"
"A real Man wouldn't believe X"
Etc..
A "real Man" according to most sisters is just a want who constantly bends his spine and lives his life just to please Women and solely abide by what THEY personally want.
Notice how when Women describe a "Real Man" he happens to always benefit the Woman in every way and holds views that all unequivocally favour/prioritise Women. The definition is always framed around how useful, accommodating and beneficial he is to Women, rather than his principes, self-respect, personal aspirations or character.
So don't let sisters tell you what a real Man should or shouldn't be. Most of them know nothing of Manhood or masculinity.
If a Woman ever tells you or tries to shame you into thinking you are not a "real Man" and you are genuinely hurt by that, you take her seriously and start questioning yourself, she is probably right. If a Woman says this to you, it usually means you are doing something right and are looking out for yourself, thinking for yourself so take it as a badge of honour.