How many immigrants do you think grew up the same way? Hint: almost none, as the United States is the only country that enshrines true freedom of speech as an unalienable and fundamental right.
This is probably considered "hate-speech" in this day and age, but immigration, shockingly, has cons as well.
How do you get from your first paragraph to your second? Many immigrants I know are, if anything, more zealous about freedom of speech than other Americans. It was one of the reasons why they went through the trouble of immigrating here.
To be fair, well-integrated immigrants are also more likely to fervently value American freedoms much more than born Americans since they know what it's like to not have those freedoms and because people don't just go through the difficult immigration process without having some ideological affinity for the US. If it were just about quality of life, Canada, much of Europe, Australia etc are not that different and usually have easier immigration.
If you look beyond your short-sighted screed, you will typically find that most immigrants to the US value American ideals more than many Americans. In some cases that is caused by idealism, and in others it's having experienced governments which are actually oppressive.
This is probably considered "hate-speech" in this day and age, but immigration, shockingly, has cons as well.