Szczepan Bialek wrote:
Congratulations. You've discovered the counterpoise. That's a good
idea (but not necessary) for a monopole, where the grounded
counterpoise forms the missing element of the dipole.

No. The counterpiose is the ground.

How can a counterpoise or chassis serve as an infinite source of
electrons? When your theory would be right, the counterpoise would
get charged just like the antenna. In reality this does not happen.

The counterpoise only serves as a place to dump AC current (the output
of the transmitter) during the cycle of radio frequency output. It is
not (and does not need to be) an infinite source of electrons because
elecrtrons are not emitted by the antenna.