It's not lack of sympathy, just real life. People who took out fixed mortgages at very low interest rates are surprised when the interests rates go up. With no financial planning for the inevitable rise they were stupid.Ok. But the apparent lack of sympathy if it does happen, "because a previous generation has to go through it", I'm not sure what that adds to anything.
When we took out our mortgage in 1981 I think it was at 8% so we had more leeway