1. Slow transaction rate
2. High consumption of electricity in running the network etc
these are both wrong and already discussed.
I have seen several blockchain network do a coin swap as a way to improve upon the security,
there is no other coin that has a security of even 10% of what bitcoin has which means by using them you will reduce your security by a lot.
Solutions using lightning network would still increase the cost of transaction in one way or another.
no it doesn't.
by the way, i hope you realize that "coin swap" costs more because of the unfavorable rates, 2 additional fees and also the best way of doing it is through lightning network and atomic swaps!
I have been thinking about this for a while, would the crypto community support the idea of a coin swap
that is not something the "community" has to support. the option is there and you can choose to use it yourself without anybody being able to prevent you as long as that other altcoin is also decentralized.