Earlier quoted context omitted.
Put it this way, I'd like to see human mortality conquered, but I don't want to be alive when it happens. If you think class warfare is a problem now, wait until only the so-called "rich" get to live forever. The others will tear the world apart.
Why would only rich people get to live longer? Advanced technology has tended to get cheaper over time, often dramatically. I'm not saying that things wouldn't be scary and tumultuous for a while, but the alternative is to slowly sicken and decay into oblivion before you've had even a single century of life. This should not be a tough decision!
Imagine if the few people who've been able to book passage to the ISS were instead the only ones who could afford immortality. Those are not going to be fun years.