I didn't say anywhere people under 30 were the only ones working and paying. In the quote you posted, I clearly said they won't get the same benefit out of their payments. At 59 and 61, you and your husband will receive your pension at 67/68 Same as me and my husband in our 50s. We'll get more out than an under 30 is likely to, because the next significant change is not scheduled to happen until 2041.
Whilst it's possible we might experience a loss of triple lock, it's highly unlikely means testing will come into force before we claim, or that the age will rise to 70.
Whereas, somebody under 30 faces much less certainty that they will receive any state pension at all. That's the difference. You and I are working towards something that is now in our sights, continuing to pay for something we will take our turn at receiving.
Somebody under 30 isn't in that position. I am not saying, not have I ever said, that we shouldn't get our pensions or that we haven't worked and paid in. I am saying that we are now in a situation where the generations below us will be paying, just like we did, but are increasingly less likely to be receiving at any point shy of 70, if at all.