I submitted my work to journal X almost a year ago; the status of the paper remained "Assigned to Reviewers" for a long time, and despite repeated emails, no one from the editorial board responded. After my last email, they recently responded, and the status date has been changed to 22 February 2022, but the status remains the same, with the message "Assigned to Reviewers."
After such a long time, it appears that my work is losing its significance. So my question is, can I submit this work to another journal in parallel with the current journal to save time?
Is it unethical for me to do this?
PS. My question has a similar answer here.