What Kind of Equality is Not Guaranteed By Democracy?

Democracy does not guarantee equality of results. This is because democracy is a system in which the people are sovereign, and they can choose to elect leaders who will pursue policies that they believe will benefit them. These policies may not result in an equal distribution of resources or outcomes—but they can result in a government that treats people equally.
In general, democracy doesn’t guarantee equality of results, opportunity, law/justice, education, healthcare, employment, housing, or public services.
Democracy can only guarantee equal opportunity for all citizens to participate in the political process. It does not ensure that every citizen will be able to achieve the same level of success in life (or even within their own country).
It does not ensure that every citizen will have an equal chance at success—even if they do participate in politics (and especially if they don’t), it cannot ensure that all laws will be applied equally across society (especially when it comes to criminal justice), it is impossible to ensure that all people have access to education or even enough reliable information about how they might get an education.
So, even if all citizens have equal access to voting and running for office in a democracy, it doesn’t mean all citizens will have equal access to education or employment opportunities as well—and this means that some people will be more able than others to participate meaningfully in politics or other important aspects of society. This can lead to unequal outcomes for different groups based on their socioeconomic status or race/ethnicity/gender identity/sexual orientation etc.