We've actually been through this discussion before. The 2005 amendments made sure it's impossible to admen the current constitution.
In the last amendment, the KMT used the trick they used to cripple the referendum act to nullify the possibility of new amendments.
- over a quarter of legislators is required to sponsor a new amendment
- over 3 quarters of legislators must attend the vote
- out of those who attended, the amendment must receive more than 75% of the vote.
As if that doesn't already guarantee for new amendments to be impossible, they added the 4th requirement:
- the amendment is then put to a vote, where more than half of the total eligible voters must vote in favor.
The third requirement means that, as long as the KMT and the pan-blue parties holds more than 29 seats (out of 113), all the KMT has to do to stop an amendment would be to give its legislators a day off.
The fourth requirement is the same as the one in the referendum act. As long as those people who oppose the amendment don't actually go to vote, the amendment won't pass even if it receives 100% of the vote. At the present that means it must receive 9,043,228 votes.