1. The games industry has every right to protect themselves from the second hand market, which is essentially parasitic. As a consumer, you can choose not support that protection but you can't pretend that it's somehow immoral.
2. If the second hand games market did not exist, new games would be cheaper.
3. As an alternative to DRM, which is antagonistic, why don't publishers offer discounts on new games if you can somehow prove you still own older titles. YOu want Uncharted 4? You've already got Uncharted 3? £15 off, another £5 for Uncharted 2 and £2.50 for Uncharted 1. Price to you Sir, on launch day, £17.50. restrict the supply, carrot instead of stick.
I'm bored with this now