The stuff that matters is vastly different between 100MHz and 10GHz.
And remember that is
radio frequency, not audio frequency (as in old-school modem or RS232 connections). Radio frequency is much more susceptible to one-time capacitance changes in the cabling than audio frequencies are. ("one-time" meaning the capacitance
has changed from A to B; not that the capacitance is
in the process of change). So a crushed Ethernet cable that stays crushed will exhibit problems where a crushed microphone cable that stays crushed will work just fine.
100 Mbit circuits are much more tolerant of out-of-spec capacitance than 10 GBit circuits are. So while a kink in a cable won't make much difference in a 100 Mbit connection, it can kill a 10 GBit connection.