Ashton was the main culprit when feeble tackling offered Wesley Fofana a path to the whitewash in the first half of Saturday's 23-13 RBS 6 Nations victory over France at Twickenham.
With Fofana beginning to accelerate, Ashton angled himself for a big hit only for the brilliant French centre to step inside and sprint free.
For sceptics of the 25-year-old rugby league convert it underlined what they already knew - that he is defensively suspect and should be replaced, most probably by fellow Saracen David Strettle.
Ashton fails to understand why his defence has become such a talking a point.
"I thought there was a lot of heat for one tackle, although I am trying to get better at that all the time," he said.
"This is new for me. I don't know where all this defence stuff has come from. I'm not afraid to tackle - I want to tackle.
"I want to hurt people - that was the issue with my shoulder charging - I just want to hurt someone. Sometimes people are bigger than you and they are going to get the better of you.
"One tackle has cost us a try, but I was caught out by an outstanding player and he scored a try. At some point Fofana is going to do that again.
"I got myself into an uncompromising position and it was unfortunate that I gave him that time to use his footwork on me and get away from me.
"At this level you can't really afford to let those things happen. I put more than enough pressure on myself to know that. I'm my own worst critic and I will be trying to get better at it."
A player who two years ago was being celebrated for his quartet of tries against Italy at Twickenham, supposedly redefining wing play through his predatory support running in the process, has fallen on lean times.
Last month's try against Scotland was Ashton's only score in two Six Nations championships, comprising of eight matches and seven victories, and his swagger has gone.
Former England assistant coach Brian Smith, now director of rugby at London Irish, is among those who believes he should be dropped.
"Chris does not want to get his hands dirty, put his head over the ball, clean out, jump for the ball and work defensively," Smith said.
The decision by England coach Stuart Lancaster to rest him from Aviva Premiership duty this weekend signifies he will start against Italy next Saturday, although his modest form is a concern.
Ashton reckons it is the right call, but accepts that perhaps he is trying too hard.
"Apparently I'm playing badly, but I don't really see it to be honest," he said.
"Stuart Lancaster and (assistant coach) Andy Farrell have given me things to work on every week and they've been pretty happy with that.
"I want to be in this team every week - that is all that matters to me. I don't really care about anything else - I just want to be in this team.
"For people to say I'm doing stuff wrong and shouldn't be in this team, it hurts, so I have got to get better at that.
"Italy two years ago was just an exceptional day - we made a lot of breaks. Whenever we make a lot of breaks I like to think I'm going to get on the end of some tries.
"Games are getting harder, especially in the Six Nations and those kind of breaks are not coming along as often.
"I'm probably doing too much at the minute, chasing absolutely everything and tiring myself out for the situations when I am actually needed.
"I can't sit back on that two years ago and be done with it - I have got to keep getting better and finding other opportunities, even in tight games and I am trying to do that."
To conclude a disappointing afternoon, Ashton ignited a late brawl by throwing the ball at wing Benjamin Fall.
"There was no intent in it. All I did was throw it walk away and then the game is over - I had no idea," he said.
"I didn't mean it to cause the lads coming running in - I didn't really want that - it was just me and him. That is why as soon as I had done it I walked away from him not realising the lads were running in behind me."