Complaining won't do anything because each individual product has already passed thru fcc certifications. All devices operating on the 2.4 ghz band must accept interference as it's not a licensed band.
Any vendor can make a device using that band (there are many conditions, but in principle it is open to anyone). One vendors signal is another vendors noise. Each vendor needs to live with that fact. That could, for example, mean accepting that their device will sometimes simply not work.
Compare with licensed bands such as the ones used for LTE. These are (basically) allocated to individual parties for their exclusive use (ie, nobody else can interfere). If a device interferes with those bands, the FCC can take enforcement action (eventually).