How has the Mexican civil society changed after the decline of PRI regime?

What will be an ideal response?

During the PRI regime, the representation of societal interests was largely
accomplished through the party's corporatist organization.
This meant that few important interest groups existed independently of the state. In the
last two decades, this situation has changed radically. The most obvious change has
come at the level of political parties, where competition has increased between the PRI,
PAN, and PRD. These three parties hotly contest elections, from the presidency on down
to the local level.
Increased competition and pluralism has also helped the development of Mexico's civil
society, allowing new social movements and interest groups to form. New workers'
unions, independent of the state, now compete with older PRI?run unions for
membership and influence. Business has also had to find new political allies and search
for new members. Even migrants, who traditionally had no representation, have started
to organize more formally to make their voice heard.
Finally, a variety of non?governmental organizations have sprung up around issues that
include everything from the environment to gay marriage to taxes. In short, new groups
have challenged existing political practices, pushing the state to adopt more democratic
practices.