Should people who are depressed and suicidal be able to seek euthanasia?

[SWE]

This would be bad. No.

[SWE]

Also, anyone who opposes this while supporting capital punishment is automatically a very illogical person.

... because?

Basically, by opposing this while supporting capital punishment, you are having these 2 beliefs at the same time:

1. The government should be allowed to forcefully kill people when they want to live.
2. The government should be allowed to force people to live when they want to kill themselves.

Which is a set of positions that supporters would have to have mutually exclusive belief systems to support.

There's nothing contradictory here. Different things are different.