No…
With all due respect to a fellow member of the bar, to threaten someone with a legal recourse if that person would not pursue a course of action against which a legal recourse exists is NOT criminal.
There is no difference between “Mr. President, protect our West Philippine Sea territories or we will institute impeachment proceedings against you” and “Within five days from receipt of this letter, vacate the premises or we will be compelled to institute ejectment proceedings against you”
