Druid is a value deck of course it’s going to win some random slow deck, if you wan’t to win druids play aggro deck like aggro paladin, you can’t expect to win every deck with 1 deck anyway.
Druid loses to aggro decks so easily, also sif mage just farms druid.
There are multiple decks that beats druid very easily
Also no one is stopping you from playing druid also!