1) Actual cost of electrical charger is minimum. Pennies. The chargers themselves are also cheap. The main cost is installation.
2) The reason electric cars do not reduce the demand for gasoline are the hybrids. Because charging is cheap at home but incredibly expensive away from home, smart people buy the hybrids and get gasoline when away from home. If we can bring down the cost of charging on the road, gas prices will drop.
3) Oil companies cannot stop the inevitable move from gas to electricity. They can slow it down - by driving up the cost to recharge your car. Hence issue 2 above.
4) You are not Subsidizing electrical cars - the electrical cars subsidize you. Trump killed all the minor electrical subsidies - but the current bill has the US government spending $40 Billion to subsidize oil companies.
5) I suggested the apartments, offices, and condos offer charging at cost rather than subsidize them.
You are experiencing "But but me..." Syndrome. When the someone suggests a new project to equalize things, the other people think "Oh, they want a benefit but do not want to give me the same thing".
What they do not realize is that you were ALREADY getting massive benefits, and the new people are just asking for the same stuff you already get. If you want to know what happens a country actually subsidies electrical cars go to Europe - the gas prices are twice that in the US.