With the money that Trump will use for the wall...
(saying that the wall will cost $25 billion)
(saying that it costs $550 to feed a family for one month)
(saying that there is, on average, 3.14 people in a family)
The country could feed over 45 million families
which is approximately equivalent to 143 million people
which is almost 45% of the population of the USA.
OR
(assuming that each family will live, on average, for 40 more years)
The USA could feed almost 100,000 families for a lifetime
Which is approximately 300,000 people that the country could feed for a lifetime.
However, this is only .1% or 1/1000 of people
If the USA were to feed some people for one year,
The USA could feed almost 4 million families for one year
which is equivalent to almost 12 million people
This would be 3.8% of the population.
so much could be done instead of building a pointless wall