I've met folks who, as age dragged them more deeply into less than commodious living, decided that there couldn't be a divine hand so mean as to make someone go through all the decay & degradation. And I knew of one RC priest who, as cancer took him out, became depressed, despite a life spent in the faith of eternity with his lord and saviour. Thus I am not sure about the correlation between age & resurgence of faith.
As for disbelievers on the air, I know of plenty. 3675 every Friday, 10pm Ohio time. We don't discuss belief as a constant thread. We get on the air and boggle each other around, just as we've been doing for the past 40 years and some.
And yes, we have made our enemies (or maybe opponents). That's why we all ended up in Extree land. Too easy to find in the General sections of the RFS. But since it isn't a group that discusses why & how many or which and whenever, we don't get noticed much. Interesting version of fellowship, however. Something like the letters section of the FFRF's "Freethought Today" quasi-monthly.
You don't end up feelin' alone. Not that my recent experience after coming out arms wavin' and feet a-stompin' has proven how few of us there are. (Good place for the subjunctive, that one . . .) Just discovering this group & its foundation on the web speaks to that one.