Representitive democracy is anti-democratic, not allowing babies to vote is anti-deomcratic. Based on the role purpose of the Senate, its more democratic that those examples.
Its purpose is 2 votes per state, with representitives elected by the people of those states.
You may not like that that is its role, and that is fine, but you can not say it would be more democratic if some states had more votes in the same way it would not be more democratic for some people to have more votes.