It is up to the individual man what he thinks he ought to do about it
The best Red Pill and manosphere content always does that. Hypothetical imperatives instead of categorical imperatives, eg "do x if you want y" instead of "you must do x!"
I always recommend some cardio vascular fitness but that is not something everyone here is as keen on.
Most people on here (at least from what I've seen) would recommend including cardio, but would say that lifting is more important. If you only have time for one, lift.
And in the particular case of OP, start eating right and stop skipping leg day.