Several comments:

1) 5 years previous to COVID were not stagnant

2) 2019 was recession year due to politcal decisions taken by the new administration of Andres Manuel Looez Obrador that killed growth after 10 consecutive years of expansion

3) investment boom of 2022-2024 was led by public investment in two big elephant projects. Serious misallocation of resources

4) Once finished, public investment collapsed

5) Mexico has had a growth problem for a long time. Many reasons, the one you mention, is not the leading one.

6) past 7 years growth average: 0.8%. Political reasons for that.

7) you are missing a MUCH broader and complex story