Original sentence: Some incorrectly consider it as a "corrupt" form of Bengali, and there is a reported language shift from Sylheti to Bengali in Bangladesh, India and the diaspora; though Sylheti has more vitality than Bangla in the United Kingdom
Edited sentence: Some incorrectly consider it as a "corrupt" form of Bengali and it is an opinion that is mostly held by many non-sylhetis people as a form of prejudice against Native sylhetis and to undermine the language, and there is a reported language shift from Sylheti to Bengali in Bangladesh, India and the diaspora; though Sylheti has more vitality than Bangla in the United Kingdom