Re: Kessler effect
GPS birds are in a much higher orbit, so are unlikely to be effected.
Internet mostly runs over optical cables, only occasionally over satellite at the moment (the current active birds are geostationary (so at much lower risk anyway), but this causes high latency, so isn’t popular when cabled connection is possible.
TV and Telephone are mostly run over cable or terrestrial radio (although mobile phone base stations tend to use GPS for time synchronisation, so if GPS were effected then they would need modification).
These birds are all in LEO, so should fall from orbit in around 5-10 years.
Any other myths you’d like me to dispel?