Why did Brits want Brexit?

The brits had begun their demographic suicide by 1979. While visiting that Christmas, I remember some old broad on the radio lecturing why they should let in infinite browns: "they enriched us when they were our colonies, now it's time and only fair we enrich them."

Was Brexit worth it? Did Anglos hate Poles, Czech, Slavs and Hungarians that much?

Brits were warned Without EU you would import Indians and Pakis