At some point we need to understand the novlang used here, by squatting the word democracy to label the political system based on elections, people in power manage to prevent to emergence of an actual democracy.
Please stop misusing this word so we have a better chance of actually having a democracy somwhere at some point in the future.
Please stop promoting democracy as the be-all end-all of systems for organizing human society. As the old saw goes "Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well armed sheep contesting the outcome".
There may be better ways of doing things but it doesn't make democracies not democracies.
From a technical perspective, this is clearly untrue.
It's impossible if you take “every issue” literally, as you are multiplying the number of pdecisions that must be made by each participant per unit of time so much that the time to consider them is non-existent.
It's less impossible if you reduce it to the kind of decisions typically made by a legislature, which mainly just sets rules for executive and judicial officials to apply in deciding more specific issues.
But even then it's of dubious practicality; obviously not every citizen can have a full-time legislative staff, and most of other things besides legislation to devote their time to.