“aircraft owners and operators will “migrate” to the newer 406.0-406.1 MHz ELTs, which are monitored by satellite”
They simply wish to track, and monitor ALL personal and private aircraft.
As a previously poster pointed out, ELTs (both 121.5 MHz and 406 MHz) only transmit when activated, either manually or after a crash (or a hard landing). Put the tin foil hats away.
There are more troubling issues that have the potential to adversely affect GA, such as the EPA pulling 100LL fuel off the market by administrative fiat or the TSA mandating that all GA flights must be security cleared by TSA agents.