The vast majority of Venezuelans voted for his opponent in the last election, which is widely considered to have been stolen by Venezuelans and the international community: https://en.wikipedia.org/wiki/2024_Venezuelan_presidential_e...
There have been widespread protests in Venezuela throughout Maduro’s regime, but especially after the election.
The question isn't how many Venezuelans oppose Maduro, but rather how many Venezuelans wanted US to invade their country to oust him.