This is 100% happening in the Bay Area. If you bought in the Mission or in Potrero Hill in the 90’s you would be sitting pretty right now.
The family I mentioned paid their dues. The husband had his jaw broken and was wired up for 6 weeks, the house broken into 3 times. The wife exposed to certain unpleasantness as well. A decade later the husband was also mugged once, held up at gunpoint twice, and in protecting someone else being attacked on the street had his nose broken. Early “gentrification” is not for the faint of heart or naive.