Constitutional amendment

When the parliament were disucussing about Security Bill Mr. Yoshinori Kobayashi, a cartoonist, said that “if they execute a forcible vote, the possibility of constitutional amendment will be low”
The support rate of the Abe cabinet plummets sharply, and it seems to be difficult to revise the constitution.
I think the economic policy of the Abe cabinet is useless at all, but I was expecting their amendment policy of the Constitution, so I became a little worried.