(...) why do you think that miners have to suffer losses so that you can make transactions (...)
I certainly don't think so.
If the price of bitcoin fell to the level of the cost of electricity, you can rest assured that mining will stop.
Is that so?
At the beginning when 1 BTC's price was as low as $0.003 there was people who believed in the project even if they had to take some money out of their own pockets.