I agree. Someone who can fund that themselves is already part of the 10% who contribute 50% of the tax and probably 80 to 90% of the net contributions when social transfers are taken into account. Getting the tax deferred on their income for all pension contributions is the least they should get.That is a different argument.
For someone with a high-cost base and high earnings throughout his/her career, it is not a massive pension.
The State Pension is fine for a significant cohort, but for others it's trivial. It is wrong to mix the two in my view.
My problem is with people getting that sort of pension without contributing to it in any meaningful way.