A lot of people, myself included, had that perception until maybe 2 years ago. A big contributor to that was there were barely any Jeets in America pre-2010 or so, and virtually none pre-90s. The tiny handful of early jeets were liked because due to low numbers, the average person rarely met them, most people's prior impression of jeets was either vague hippie buddhist ideas, or nerdy Asian-esque caricatures from various shows. And, the early ones were generally well behaved because they were the literal top 1% of jeets. Not defending them though, because they enabled their lower class to immigrate as soon as they got corporate management jobs, just saying the early ones were objectively the "best" of India and thus better at pretending to be normal. (e.g Nikki Haley's family)
The mass immigration really only ramped up in the last 5-10 years, and when you combine a much larger volume of jeets, the unpleasantness of the average jeet, and many more people being exposed to them, the inevitable result was "familiarity breeds contempt".