the overwhelming majority support it or participate in it, so yes
Condemning an individual based on generalizations or stereotypes about a larger group is a fundamental part of what it means to be prejudiced. You aren't a moral person if you lump in the hundreds and hundreds of millions of Muslims who've never degraded gays and women with the ones who do.
Greater Islam has been corrupted by Saudi Salafism, but it is nothing short of evil for you to paint all Muslims with the same broad brush.
According the pew research poll on this topic, support for sharia averages around 50% across about 40 countries (both western and eastern). That's around 800 million people going by the "1.6 billion muslims" rule. Exactly how many people supporting decidedly an anti-equality set of laws is "too many" for you? Because "not all" is a fine defense, but how many is acceptable?
Depends what they define as sharia imo ---
"To be a poor man is hard, but to be a poor race in a land of dollars is the very bottom of hardships." -- W.E.B. Du Bois