(To what extent) will Trump's plans, the implementation of the zero tolerance policy and the building of a wall between America and Mexico, be effective in combating the MS-13 criminal gang?

For school, I am investigating (to what extent) Donald Trump’s plans, implementing zero tolerance policies, and building a wall between America and Mexico will be effective in fighting the MS-13 criminal gang. According to the Trump government, the wall is needed, among other things, to prevent gang members from entering the US. What is your vision on this? Is this a good way to combat MS-13 or is it an attempt to get support for strict enforcement of immigration? Thanks in advance!