"I viewed it as someone who knows about riding, they viewed it as somebody who doesn't," he said after his hearing.
"Britain is very fortunate to have great horse racing, it has great trainers and good owners, but it need to use an awful lot more common sense."
Walsh added that his appeal's failure had not affected his enthusaism for racing in Britain.
Joe WilsonBBC Sport
"The rules do permit extra use of the whip if a horse is threatening itself or other horses and riders. Walsh used this defence but the BHA maintained that Walsh had other ways of controlling the horse, that its safety was not in question, and that the rules allowed no room for ambiguity. Walsh is clearly a very respected jockey and his colleagues will have been watching the case closely. The BHA maintain that they are giving very clear and precise guidelines to jockeys, which is exactly what they had asked for in the first place. Having already amended the whip rules once, this hearing shows very clearly the BHA's determination to enforce the regulations."
His advocate described Walsh's ride as one of "a consummate professional".
The Irish jockey struck his mount nine times, one more than the maximum under controversial new whip rules, when winning by a nose in the race on 23 October.
But he claimed that one of those strikes was to correct his horse's balance on the approach to a fence.
"They agree that I had used the whip for corrective measure, but they didn't deem it to be a safety measure. To get a five-day ban for that baffles me," Walsh added.
"I have never had a problem with regulation and whip rules. I don't have a problem with them now.
"I think the old rules were very good, if they wanted to have harsher penalties under the old rules, that is the way that I think they should have went."
A further breach of the rules will see him handed a 10-day ban.
"It's a fair cloud to have hanging over you. I just think the rules are unfair and are way too stringent and way too strict," said the 32-year-old.
NEW RULES IN BRIEF
Jockeys can use the whip seven times in Flat races and eight times over jumps
The additional restriction of a maximum of five strikes in the closing stages is lifted
Jockeys exceeding the limit by one strike will be suspended
Exceeding the limit by more than one strike will mean the jockey forfeits share of prize money
The Grand National and Cheltenham Gold Cup winner told Racing UK: "I'm not into numbers. Every case is individual, it's a grey area that people are trying to make black and white. If seven is acceptable in a five-furlong race how can eight be acceptable in a jumps race? It's bizarre.
"I honestly believe the situation will get worse before it gets better. Bans will start to mount up, people will end up doing what I did - instinctively doing something to correct a horse that is not allowed and walk into five-day and 10-day bans."
Walsh came unstuck two days after the BHA agreed to some amendments to the new whip rules on 21 October.
But some riders are still unhappy with the penalties and the following race started five minutes late as jockeys debated whether to boycott the contest.
The ban rules Walsh out of racing from 5-9 November, with the first day of the suspension meaning he misses the Down Royal card, which includes the Grade One chase.
After the Aintree race, Edgardo Sol's trainer Paul Nicholls said on his
: "Nice day with three winners ruined by Ruby's five-day ban after awesome ride on Edgardo Sol.
"And Ruby just told me he can't ride Kauto Stone and The Nightingale at Down Royal on November 5. Beyond a joke."
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