The Magpies have taken just one point from their opening two games and have added only striker Loic Remy to their squad from the last campaign.
Kinnear told The Mirror: "I don't understand where the negativity has come from – we are two games into a 38-game season and already the doom-and-gloom merchants are looking for a scapegoat.
"Alan Pardew has signed 16 players costing £60m in the last two years, Newcastle United's wage bill is now comfortably in the top 10 in the country, and he will continue to get all the support the club can reasonably provide.
"There seems to be a perception, from outside the club, that we are at loggerheads, but I don't know why people are jumping on the bandwagon because it is a false picture."
Newcastle are next in action on Wednesday in the Capital One Cup against Morecambe.