You are absolutely not looked down upon.
As someone who has thankfully just got out of working in Jobcentres after a long time, I can confirm that we view people like you who work full time, might be claiming help with childcare costs, totally differently to those not working when they could or deliberately working part time to work the system.
I've worked in this area for so long, I can remember when lone parents could sit on benefits not having to work until their youngest was 16!! How absolutely ridiculous! They would often then have another baby.
People might think that these people are made up by the Daily Mail but they are very real believe me.
I have watched families get smaller when the benefit cap and the 2 child cap came in. It used to be common to come across really big families and now you rarely see someone with more than 3 kids.
I've had pregnancies announced to me and when I've told them they won't get any more UC for another child, they've told me they will have to abort then.
With child benefit, before the cap, each child used to be worth an extra £110 a week to the claimants. One mother I used to see a few years ago was on £1000 a week because she had so many kids. Didn't work of course.
The UC claimants were so much better to work with than the ones who had come over from tax credits as they knew from the start they were expected to prepare for work when their baby was one and be in work by the time they were 3. Lots of them were already in work by that time anyway. The ex tax credits claimants had been used to working 16 hours even if they had a 15 Yr old and didn't like being told to increase their hours. The system was so much worse on tax credits.
Thankfully I am out of there now.