Since when is too bright too much ? you city drivers have street lights, there ain't stuff all up here so you have to see "well" for at least 250m at 100kph.
The problem arises when some fools simply don't bother to adjust the headlights correctly or fail to compensate for a load in the rear end that will change their aim, remember that low beam is meant to be just that, low and to the left, properly adjusted lights should not blind oncoming drivers, and it pays to never look at the oncoming lights, ever, no matter their wattage or setup.
Hologen lights are always brighter by their nature, just don't look at em.
Wires won't melt unless wired incorrectly direct to the battery, the D/L relay / and or fuse should blow way before that if wired and connected with proper terminals, common sense should prevail and using such high wattage the entire wiring needs to be done professionally with the appropriate size wiring and relays.
The old trick of wiring driving lights to the high beam trigger so they come on with high beam is illegal, they must have a seperate switch, even if the same high beam trigger is used.